Effect of Plant Density on Productivity of some Sweet and Hot Pepper Hybrids in Plastic Greenhouse

The study was conducted in Jableh during 2012/2013 in plastic green house on sweet and hot pepper hybrids to study the effect of plant density on growth and productivity. The hybrid VIGARIO(sweet pepper) and hybrid ERAD (hot pepper)variety were applied in six treatment and four replication .It was showed that the highest number of flowers were recorded in VIGARIO variety in space (50x60)cm to amount(18.33) flower/plant ,while the the highest number of fruits were recorded in space(50x40)cm to amount(20.98)fruit/plant and the earlest yield (390.6)g/m2and the highest total (3486)g/m2productivity were found in space (50x40)cm . IRAD hybrid give the highest number of flower in space (50x40)cm to amount(28.23) flower/plant,while the hieghest number of fruit were recorded in space (40x60)cm to amount(107.17) fruit/plant and the highest productivity were found in space(50x40)cm to amount (9485.7)g/m2.

The effect of foliar spray of nitrogen, boron and zinc on the growth indicators and the content of the leaves of elements of two olive cultivars (Nebaly mohasan and Dan)

This experiment was carried out during 2009 and 2010 seasons in fields cultivated with 10 years of Dan and Nebaly cultivars of olive trees in province of Damascus to study the effect of foliar spray of to one of nitrogen (N), boron (B) and zinc (Z) on the leaf area, shoot length, number of flowers, leaves content of mineral elements, fertilization. These elements were sprayed individually or combined together four times during the growing season as follows: nitrogen (5 g/l), boric acid (2g /l), zinc sulfate (2g/ l), nitrogen + boric acid, nitrogen + zinc sulfate, Boric acid + Zinc sulfate, and nitrogen + boric acid + zinc sulphate) at the same rates in single spray.